Tybee Island, GA has a population of 3,068 and is the 8,700th largest city in the United States. The population density is 1,048 per sq mi which is 528% higher than the Georgia average and 1056% higher than the national average. The median age in Tybee Island is 53 which is approximately 45% higher than the Georgia average of 36. In Tybee Island, 57% of the population over 15 years of age are married, 96% speak English and 3% speak Spanish. 42% of Tybee Island residents were born in Georgia, 55% were born out of state, 2% were born outside of the United States and 2% were foreign born.